THALOMID- thalidomide capsule
HIGHLIGHTS OF PRESCRIBING INFORMATION
These highlights do not include all the information needed to use THALOMID® safely and effectively. See full prescribing information for THALOMID®.
THALOMID® (thalidomide) capsules for oral use
Initial U.S. Approval: 1998
WARNING: EMBRYO-FETAL TOXICITY AND VENOUS THROMBOEMBOLISM
EMBRYO -FETAL TOXICITY
THALOMID® (thalidomide) is only available through a restricted distribution program, the THALOMID REMS™ program (formerly known as the System for Thalomid Education and Prescribing Safety (S.T.E.P.S.®) program) (5.2).
RECENT MAJOR CHANGES
Warnings and Precautions (5.3) 06/2014
INDICATIONS AND USAGE
DOSAGE AND ADMINISTRATION
DOSAGE FORMS AND STRENGTHS
Capsules: 50 mg, 100 mg, 150 mg and 200 mg. (3)
WARNINGS AND PRECAUTIONS
To report SUSPECTED ADVERSE REACTIONS or embryo-fetal exposure: contact Celgene Corporation at 1-888-423-5436 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
USE IN SPECIFIC POPULATIONS
See 17 for PATIENT COUNSELING INFORMATION and Medication Guide.
FULL PRESCRIBING INFORMATION: CONTENTS*
7.1 Opioids, Antihistamines, Antipsychotics, Anti-anxiety Agents, or Other CNS Depressants (Including Alcohol)
THALOMID in combination with dexamethasone is indicated for the treatment of patients with newly diagnosed multiple myeloma (MM).
THALOMID is indicated for the acute treatment of the cutaneous manifestations of moderate to severe erythema nodosum leprosum (ENL).
THALOMID is not indicated as monotherapy for such ENL treatment in the presence of moderate to severe neuritis.
THALOMID is also indicated as maintenance therapy for prevention and suppression of the cutaneous manifestations of ENL recurrence.
THALOMID® (THALIDOMIDE) MUST ONLY BE ADMINISTERED IN COMPLIANCE WITH ALL OF THE TERMS OUTLINED IN THE THALOMID REMS™ PROGRAM. THALOMID® (THALIDOMIDE) MAY ONLY BE PRESCRIBED BY PRESCRIBERS CERTIFIED WITH THE THALOMID REMS™ PROGRAM AND MAY ONLY BE DISPENSED BY PHARMACISTS CERTIFIED WITH THE THALOMID REMS™ PROGRAM.
Drug prescribing to females of reproductive potential should be contingent upon initial and continued confirmed negative results of pregnancy testing.
THALOMID is administered in combination with dexamethasone in 28-day treatment cycles. The dose of THALOMID is 200 mg administered orally once daily with water, preferably at bedtime and at least 1 hour after the evening meal. The dose of dexamethasone is 40 mg daily administered orally on days 1-4, 9-12, and 17-20 every 28 days.
Patients who develop adverse reactions such as constipation, somnolence, or peripheral neuropathy may benefit by either temporarily discontinuing the drug or continuing at a lower dose. With the abatement of these adverse reactions, the drug may be started at a lower dose or at the previous dose based on clinical judgment.
For an episode of cutaneous ENL, THALOMID dosing should be initiated at 100 to 300 mg/day, administered once daily with water, preferably at bedtime and at least 1 hour after the evening meal. Patients weighing less than 50 kilograms should be started at the low end of the dose range.
In patients with a severe cutaneous ENL reaction, or in those who have previously required higher doses to control the reaction, THALOMID dosing may be initiated at higher doses up to 400 mg/day once daily at bedtime or in divided doses with water, at least 1 hour after meals.
In patients with moderate to severe neuritis associated with a severe ENL reaction, corticosteroids may be started concomitantly with THALOMID. Steroid usage can be tapered and discontinued when the neuritis has ameliorated.
Dosing with THALOMID should usually continue until signs and symptoms of active reaction have subsided, usually a period of at least 2 weeks. Patients may then be tapered off medication in 50 mg decrements every 2 to 4 weeks.
Patients who have a documented history of requiring prolonged maintenance treatment to prevent the recurrence of cutaneous ENL or who flare during tapering should be maintained on the minimum dose necessary to control the reaction. Tapering off medication should be attempted every 3 to 6 months, in decrements of 50 mg every 2 to 4 weeks.
THALOMID 50 mg, 100 mg, 150 mg and 200 mg capsules will be supplied through the THALOMID REMS™ program [see How Supplied/Storage and Handling (16)].
THALOMID is available in the following capsule strengths:
50 mg capsules [white opaque], imprinted “Celgene/50 mg” with a “Do Not Get Pregnant” logo.
100 mg capsules [tan], imprinted “Celgene/100 mg” with a “Do Not Get Pregnant” logo.
150 mg capsules [tan and blue], imprinted “Celgene/150 mg” with a “Do Not Get Pregnant” logo
200 mg capsule [blue], imprinted “Celgene/200 mg” with a “Do not Get Pregnant” logo.
[see Boxed Warning]
THALOMID can cause fetal harm when administered to a pregnant female [see Warnings and Precautions (5.1) and Use in Specific Populations (8.1). Thalidomide is contraindicated in females who are pregnant. Thalidomide is a powerful human teratogen, inducing a high frequency of severe and life-threatening birth defects, even after a single dose [see Boxed Warning]. Mortality at or shortly after birth has been reported in about 40% of infants. If this drug is used during pregnancy, or if the patient becomes pregnant while taking this drug, the patient should be apprised of the potential hazard to the fetus. If pregnancy occurs during thalidomide treatment, the drug should be discontinued immediately.
THALOMID is contraindicated in patients who have demonstrated hypersensitivity to the drug or its components [see Warnings and Precautions (5.14)].
Thalidomide is a powerful human teratogen that induces a high frequency of severe and life-threatening birth defects, even after a single dose. Mortality at or shortly after birth has been reported in about 40% of infants. When there is no satisfactory alternative treatment, females of reproductive potential may be treated with thalidomide provided adequate precautions are taken to avoid pregnancy. THALOMID® (thalidomide) is only available through the THALOMID REMS™ program (formerly known as the “S.T.E.P.S.® program”), [see Warnings and Precautions (5.2)].
Oral ingestion is the only type of maternal thalidomide exposure known to result in drug-associated birth defects. There are no specific data available regarding the reproductive risks of cutaneous absorption or inhalation of thalidomide; however, females of reproductive potential should avoid contact with THALOMID® (thalidomide) Capsules. THALOMID Capsules should be stored in blister packs until ingestion. If there is contact with non-intact thalidomide capsules or the powder contents, the exposed area should be washed with soap and water.
If healthcare providers or other care givers are exposed to body fluids from patients receiving THALOMID (thalidomide) the exposed area should be washed with soap and water. Appropriate precautions should be utilized, such as wearing gloves to prevent the potential cutaneous exposure to THALOMID.
Females of Reproductive Potential
Females of reproductive potential must avoid pregnancy for at least 4 weeks before beginning THALOMID therapy, during therapy, during dose interruptions and for at least 4 weeks after completing therapy.
Females must commit either to abstain continuously from heterosexual sexual intercourse or to use two methods of reliable birth control, beginning 4 weeks prior to initiating treatment with THALOMID, during therapy, during dose interruptions and continuing for 4 weeks following discontinuation of THALOMID therapy.
Two negative pregnancy tests must be obtained prior to initiating therapy. The first test should be performed within 10-14 days and the second test within 24 hours prior to prescribing THALOMID therapy and then weekly during the first month, then monthly thereafter in women with regular menstrual cycles or every 2 weeks in women with irregular menstrual cycles [see Use in Specific Populations (8.6)].
Thalidomide is present in the semen of patients receiving the drug. Therefore, males must always use a latex or synthetic condom during any sexual contact with females of reproductive potential while taking THALOMID and for up to 28 days after discontinuing THALOMID, even if they have undergone a successful vasectomy. Male patients taking THALOMID must not donate sperm [see Use in Specific Populations (8.6)].
Patients must not donate blood during treatment with THALOMID and for 1 month following discontinuation of the drug because the blood might be given to a pregnant female patient whose fetus must not be exposed to THALOMID.
Because of the embryo-fetal risk [see Warnings and Precautions (5.1)], THALOMID is available only through a restricted program under a Risk Evaluation and Mitigation Strategy (REMS), the THALOMID REMS™ program (formerly known as the “S.T.E.P.S.®” program).
Required components of the THALOMID REMS™ program include the following:
Further information about the THALOMID REMS™ program is available at www.celgeneriskmanagement.com or by telephone at 1-888-423-5436.
Thalidomide frequently causes drowsiness and somnolence. Patients should be instructed to avoid situations where drowsiness may be a problem and not to take other medications that may cause drowsiness without adequate medical advice [see Drug Interactions (7.1)]. Advise patients as to the possible impairment of mental and/or physical abilities required for the performance of hazardous tasks, such as driving a car or operating other complex or dangerous machinery. Dose reductions may be required.
Thalidomide is known to cause nerve damage that may be permanent. Peripheral neuropathy is a common (≥10%) and potentially severe adverse reaction of treatment with thalidomide that may be irreversible. Peripheral neuropathy generally occurs following chronic use over a period of months; however, peripheral neuropathy following relatively short-term use has been reported. The correlation with cumulative dose is unclear. Symptoms may occur some time after thalidomide treatment has been stopped and may resolve slowly or not at all.
Few reports of neuropathy have arisen in the treatment of ENL despite long-term thalidomide treatment. However, the inability clinically to differentiate thalidomide neuropathy from the neuropathy often seen in Hansen’s disease makes it difficult to determine accurately the incidence of thalidomide-related neuropathy in ENL patients treated with thalidomide.
Patients should be examined at monthly intervals for the first 3 months of thalidomide therapy to enable the clinician to detect early signs of neuropathy, which include numbness, tingling or pain in the hands and feet. Patients should be evaluated periodically thereafter during treatment. Patients should be regularly counseled, questioned, and evaluated for signs or symptoms of peripheral neuropathy. Consideration should be given to electrophysiological testing, consisting of measurement of sensory nerve action potential (SNAP) amplitudes at baseline and thereafter every 6 months in an effort to detect asymptomatic neuropathy. If symptoms of drug-induced neuropathy develop, thalidomide should be discontinued immediately to limit further damage, if clinically appropriate. Usually, treatment with thalidomide should only be reinitiated if the neuropathy returns to baseline status.
Medications known to be associated with neuropathy should be used with caution in patients receiving thalidomide [see Drug Interactions (7.3)].
Patients should also be advised that thalidomide may cause dizziness and orthostatic hypotension and that, therefore, they should sit upright for a few minutes prior to standing up from a recumbent position.
Decreased white blood cell counts, including neutropenia, have been reported in association with the clinical use of thalidomide. Treatment should not be initiated with an absolute neutrophil count (ANC) of <750/mm3. White blood cell count and differential should be monitored on an ongoing basis, especially in patients who may be more prone to neutropenia, such as patients who are HIV-seropositive. If ANC decreases to below 750/mm3 while on treatment, the patient’s medication regimen should be re-evaluated and, if the neutropenia persists, consideration should be given to withholding thalidomide if clinically appropriate.
In a randomized, placebo-controlled trial of thalidomide in an HIV-seropositive patient population, plasma HIV RNA levels were found to increase (median change = 0.42 log10 copies HIV RNA/mL, p = 0.04 compared to placebo). A similar trend was observed in a second, unpublished study conducted in patients who were HIV-seropositive. The clinical significance of this increase is unknown. Both studies were conducted prior to availability of highly active antiretroviral therapy. Until the clinical significance of this finding is further understood, in HIV-seropositive patients, viral load should be measured after the first and third months of treatment and every 3 months thereafter.
Bradycardia in association with thalidomide use has been reported. Cases of bradycardia have been reported, some required medical interventions. The clinical significance and underlying etiology of the bradycardia noted in some thalidomide-treated patients are presently unknown. Monitor patients for bradycardia and syncope. Dose reduction or discontinuation may be required.
Medications known to decrease heart rate should be used with caution in patients receiving thalidomide [see Drug Interactions (7.2)].
Serious dermatologic reactions including Stevens-Johnson syndrome and toxic epidermal necrolysis, which may be fatal, have been reported. THALOMID should be discontinued if a skin rash occurs and only resumed following appropriate clinical evaluation. If the rash is exfoliative, purpuric, or bullous or if Stevens-Johnson syndrome or toxic epidermal necrolysis is suspected, use of THALOMID should not be resumed.
Although not reported from pre-marketing controlled clinical trials, seizures, including grand mal convulsions, have been reported during post-approval use of THALOMID in clinical practice. Because these events are reported voluntarily from a population of unknown size, estimates of frequency cannot be made. Most patients had disorders that may have predisposed them to seizure activity, and it is not currently known whether thalidomide has any epileptogenic influence. During therapy with thalidomide, patients with a history of seizures or with other risk factors for the development of seizures should be monitored closely for clinical changes that could precipitate acute seizure activity.
Monitor patients at risk of tumor lysis syndrome (e.g., patients with high tumor burden prior to treatment) and take appropriate precautions.
Some contraceptive methods may pose a higher risk of adverse effects or may be medically contraindicated in some patients treated with THALOMID. Because some patients may develop sudden, severe neutropenia and/or thrombocytopenia, use of an intrauterine device (IUD) or implantable contraception in these patients may carry an increased risk for infection or bleeding either at insertion, removal or during use. Treatment with THALOMID, the presence of an underlying malignancy, and/or use of an estrogen-containing contraceptive can each increase the risk of thromboembolism. It is not known if these risks of thromboembolism are additive. However, they should be taken into consideration when choosing contraceptive methods.
Hypersensitivity to THALOMID has been reported. Signs and symptoms have included the occurrence of erythematous macular rash, possibly associated with fever, tachycardia, and hypotension, and if severe, may necessitate interruption of therapy. If the reaction recurs when dosing is resumed, THALOMID should be discontinued.
The following adverse reactions are described in detail in other labeling sections:
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
Most patients taking thalidomide can be expected to experience adverse reactions.
The most serious toxicity associated with thalidomide is its documented human teratogenicity. The risk of severe birth defects, primarily phocomelia or death to the fetus, is extremely high during the critical period of pregnancy. The critical period is estimated, depending on the source of information, to range from 35 to 50 days after the last menstrual period. The risk of other potentially severe birth defects outside this critical period is unknown, but may be significant. Based on present knowledge, thalidomide must not be used at any time during pregnancy.
Because thalidomide is present in the semen of patients receiving the drug, males receiving thalidomide must always use a latex or synthetic condom during any sexual contact with females of reproductive potential, even if he has undergone a successful vasectomy.
Venous and Arterial Thromboembolism:
An increased risk of venous thromboembolism (such as deep vein thrombosis and pulmonary embolism), ischemic heart disease (including myocardial infarction), and stroke have been reported in patients with multiple myeloma treated with thalidomide [See Venous and Arterial Thromboembolism (5.3)].
Peripheral Neuropathy is a very common, potentially severe, adverse reaction of treatment with thalidomide that may result in irreversible damage. Peripheral neuropathy generally occurs following chronic use over a period of months. However, reports following relatively short-term use also exist. Incidence of neuropathy events leading to discontinuation, dose reduction or interruption increases with cumulative dose and duration of therapy. Symptoms may occur some time after thalidomide treatment has been stopped and may resolve slowly or not at all.
Somnolence, dizziness, and rash are the most commonly observed adverse reactions associated with the use of thalidomide. Adverse event profiles from clinical trials are summarized in the sections that follow.
Adverse Reactions in Multiple Myeloma Controlled Clinical Trials
The safety analyses were conducted in two controlled clinical studies (Study 1 and Study 2). The safety analysis in Study 1 was conducted on 204 patients who received treatment. Table 1 lists the most common adverse drug reactions (≥ 10%). The most frequently reported adverse reactions were fatigue, hypocalcemia, edema, constipation, sensory neuropathy, dyspnea, muscle weakness, leukopenia, neutropenia, rash/desquamation, confusion, anorexia, nausea, anxiety/agitation , tremor, fever, weight loss, thrombosis/embolism, neuropathy-motor, weight gain, dizziness, and dry skin .
Twenty-three percent of patients (47/204) discontinued due to adverse reactions; 30% (31/102) from the THALOMID/dexamethasone arm and 16% (16/102) from the dexamethasone alone arm.
|*Treatment-emergent adverse reactions reported in ≥10% of patients in THALOMID/dexamethasone arm and with a ≥1% difference in the THALOMID/dexamethasone arm compared to the dexamethasone alone arm.|
|Thal + Dex *
| All Grades
| Grade 3/4
| All Grades
| Grade 3/4
|Metabolic/Laboratory||97 (95)||33 (32)||96 (94)||30 (29)|
|Hypocalcemia||73 (72)||11 (11)||60 (59)||5 (5)|
|Neurology||92 (90)||30 (29)||76 (74)||18 (18)|
|Neuropathy-sensory||55 (54)||4 (4)||28 (28)||1 (1)|
|Confusion||29 (28)||9 (9)||12 (12)||3 (3)|
|Anxiety/agitation||26 (26)||1 (1)||14 (14)||3 (3)|
|Tremor||26 (26)||1 (1)||6 (6)||0 (0)|
|Neuropathy-motor||22 (22)||8 (8)||16 (16)||5 (5)|
|20 (20)||1 (1)||14 (14)||0 (0)|
| Depressed level of
|16 (16)||3 (3)||3 (3)||3 (3)|
|Constitutional Symptoms||91 (89)||19 (19)||84 (82)||16 (16)|
|Fatigue||81 (79)||17 (17)||72 (71)||13 (13)|
|Fever||24 (24)||1 (1)||20 (20)||3 (3)|
|Weight loss||23 (23)||1 (1)||21 (21)||2 (2)|
|Weight gain||22 (22)||1 (1)||13 (18)||0 (0)|
|Blood/Bone Marrow||88 (86)||29 (29)||96 (94)||19 (19)|
|Leukocytes (decreased)||36 (35)||6 (6)||30 (29)||3 (3)|
|Neutrophils (decreased)||32 (31)||10 (10)||24 (24)||10 (10)|
|Gastrointestinal||83 (81)||22 (22)||70 (69)||8 (8)|
|Constipation||56 (55)||8 (8)||29 (28)||1 (1)|
|Anorexia||29 (28)||4 (4)||25 (24)||2 (2)|
|Nausea||29 (28)||5 (5)||23 (22)||1 (1)|
|Mouth dryness||12 (12)||1 (1)||6 (6)||0 (0)|
|Cardiovascular||70 (69)||37 (36)||60 (59)||21 (21)|
|Edema||58 (56)||6 (6)||47 (46)||4 (4)|
|Thrombosis/embolism||23 (22)||21 (21)||5 (5)||5 (5)|
|Pain||64 (63)||10 (10)||66 (65)||15 (15)|
|Myalgia||17 (17)||0 (0)||14 (14)||1 (1)|
|Arthralgia||13 (13)||0 (0)||10 (10)||2 (2)|
|Pulmonary||52 (51)||19 (19)||51 (50)||20 (20)|
|Dyspnea||43 (42)||13 (13)||32 (31)||15 (15)|
|Dermatology/Skin||48 (47)||5 (5)||35 (34)||2 (2)|
|Rash/desquamation||31 (30)||4 (4)||18 (18)||2 (2)|
|Dry skin||21 (21)||0 (0)||11 (11)||0 (0)|
|Hepatic||47 (46)||7 (7)||45 (44)||4 (4)|
|Bilirubin||14 (14)||2 (2)||10 (10)||2 (2)|
|Musculoskeletal||42 (41)||9 (9)||41 (40)||14 (14)|
|Muscle weakness||41 (40)||6 (6)||38 (37)||13 (13)|
The safety analysis in Study 2 was conducted on 466 patients who received treatment. Table 2 lists the most common adverse drug reactions (≥ 10%) that were observed. Table 3 lists the most common Grade 3/4 adverse drug reactions (occurring at > 2%) that were observed. The adverse reactions most often reported by patients treated with THALOMID/dexamethasone were constipation, peripheral edema, tremor, asthenia, dizziness and fatigue. Adverse reactions with a frequency at least 2-fold higher in the THALOMID/dexamethasone group than in the placebo/dexamethasone group include constipation, tremor, deep vein thrombosis and peripheral sensory neuropathy.
Twenty-six percent of patients (121/466) discontinued due to adverse events; 37% (86/234) from the THALOMID/dexamethasone arm and 15% (35/232) from the placebo/dexamethasone arm.
*All adverse reactions reported in ≥10% of patients in THALOMID/dexamethasone arm and with a ≥1% difference in proportion of patients between the THALOMID/dexamethasone arm compared to the placebo/dexamethasone arm.
MedDRA = Medical Dictionary for Regulatory Activities; NOS = not otherwise specified.
|MedDRA System Organ Class/Preferred Term||Thal/Dex (N=234)*
|Patients with at least 1 Adverse Reaction||233 (99)||230 (99)|
|General Disorders and Administration Site Conditions||176 (75)||149 (64)|
|Edema peripheral||80 (34)||57 (25)|
|Asthenia||56 (24)||47 (20)|
|Fatigue||50 (21)||36 (16)|
|Edema NOS||31 (13)||19 (8)|
|Gastrointestinal Disorders||162 (69)||149 (64)|
|Constipation||116 (50)||49 (21)|
|Nausea||30 (13)||27 (12)|
|Dyspepsia||27 (11)||21 (9)|
|Nervous System Disorders||161 (69)||138 (60)|
|Tremor||62 (26)||29 (12)|
|Dizziness||51 (23)||32 (14)|
|Paraesthesia||27 (12)||15 (6)|
|Peripheral sensory neuropathy||24 (10)||12 (5)|
|Infections and Infestations||139 (59)||138 (60)|
|Pneumonia NOS||35 (15)||28 (12)|
|Psychiatric Disorders||90 (38)||97 (42)|
|Anxiety||27 (12)||22 (10)|
|Depression||24 (10)||19 (8)|
|Metabolism and Nutrition Disorders||96 (41)||89 (38)|
|Hyperglycemia NOS||36 (15)||32 (14)|
|Vascular Disorders||92 (39)||53 (23)|
|Deep vein thrombosis||30 (13)||4 (2)|
*All Grade 3/4 adverse reactions with >2% of patients in THALOMID/dexamethasone arm and with a higher frequency in the THALOMID/dexamethasone arm compared to the placebo/dexamethasone arm.
MedDRA = Medical Dictionary for Regulatory Activities; NOS = not otherwise specified.
|MedDRA System Organ
|Infections and Infestations||50 (21)||36 (16)|
|Pneumonia NOS||17 (7)||14 (6)|
|Bronchopneumonia NOS||7 (3)||3 (1)|
|General Disorders and
Administration Site Conditions
|44 (19)||26 (11)|
|Asthenia||11 (5)||4 (2)|
|Metabolism and Nutrition
|33 (14)||34 (15)|
|Hypokalemia||7 (3)||3 (1)|
|Nervous System Disorders||47 (20)||20 (9)|
|Syncope||8 (3)||1 (<1)|
|Peripheral neuropathy NOS||8 (3)||0 (0)|
|Cerebrovascular accident||6 (3)||1 (<1)|
|Cardiac Disorders||35 (15)||27 (11)|
|Atrial fibrillation||11 (5)||8 (3)|
|Myocardial ischemia||6 (3)||2 (1)|
|Vascular Disorders||42 (18)||14 (6)|
|Deep vein thrombosis||27 (12)||4 (2)|
|Gastrointestinal Disorders||26 (11)||22 (10)|
|Constipation||7 (3)||2 (1)|
|Investigations||21 (9)||21 (9)|
|Weight increased||8 (3)||4 (2)|
|Blood and Lymphatic System
|24 (10)||17 (7)|
|Neutropenia||8 (3)||6 (3)|
|Respiratory, Thoracic, and
|27 (12)||13 (6)|
|Pulmonary embolism||16 (7)||4 (2)|
|Psychiatric Disorders||19 (8)||8 (3)|
|Anxiety||5 (2)||3 (1)|
|Confusional state||5 (2)||2 (1)|
|Ear and Labyrinth Disorders||6 (3)||0 (0)|
|Vertigo||5 (2)||0 (0)|
Less Common Adverse Drug Reactions in Multiple Myeloma Controlled Clinical Trials
In Study 2, THALOMID in combination with dexamethasone in patients with multiple myeloma, the following adverse drug reactions not described above were reported*:
Gastrointestinal disorders: Vomiting NOS, dry mouth, peritonitis, diverticular perforation
Nervous system disorders: Somnolence, hypoesthesia, polyneuropathy NOS, transient ischemic attack
Respiratory, thoracic, and mediastinal disorders: Bronchitis NOS
Psychiatric disorders: Mood alteration NOS
Vascular disorders: Hypotension NOS, orthostatic hypotension
Cardiac disorders: Bradycardia NOS
Eye disorders: Blurred vision
* All adverse reactions with ≥3% of patients in THALOMID/dexamethasone arm and with a ≥1% difference in proportion of patients between the THALOMID/dexamethasone arm compared to the placebo/dexamethasone arm. All grade 3/4 and serious adverse reactions reported >2 patients in THALOMID/dexamethasone arm and with a percentage higher in the THALOMID/dexamethasone arm compared to the placebo/dexamethasone arm have been considered for possible inclusion. In any cases medical judgment has been applied for consideration of causality assessment.
Adverse Reactions in Erythema Nodosum Leprosum (ENL) Clinical Trials
Table 4 lists treatment-emergent signs and symptoms that occurred in THALOMID-treated patients in clinical trials in ENL. The most common adverse reactions (≥10%) reported in patients with ENL were somnolence, rash, headache. Doses ranged from 50 to 300 mg/day. All adverse reactions were mild to moderate in severity, and none resulted in discontinuation.
|Body System/Adverse Event|| All AEs Reported
in Patients with ENL
|AEs Reported in ≥3 HIV-seropositive Patients|
|50 to 300 mg/day
|Body as a Whole||16 (66.7%)||18 (50.0%)||19 (59.4%)||13 (37.1%)|
|Abdominal pain||1 (4.2%)||1 (2.8%)||1 (3.1%)||4 (11.4%)|
|Accidental injury||1 (4.2%)||2 (5.6%)||0||1 (2.9%)|
|Asthenia||2 (8.3%)||2 (5.6%)||7 (21.9%)||1 (2.9%)|
|Back pain||1 (4.2%)||2 (5.6%)||0||0|
|Chills||1 (4.2%)||0||3 (9.4%)||4 (11.4%)|
|Facial edema||1 (4.2%)||0||0||0|
|Fever||0||7 (19.4%)||7 (21.9%)||6 (17.1%)|
|Headache||3 (12.5%)||6 (16.7%)||6 (18.7%)||4 (11.4%)|
|Infection||0||3 (8.3%)||2 (6.3%)||1 (2.9%)|
|Neck pain||1 (4.2%)||0||0||0|
|Neck rigidity||1 (4.2%)||0||0||0|
|Pain||2 (8.3%)||0||1 (3.1%)||2 (5.7%)|
|Digestive System||5 (20.8%)||16 (44.4%)||16 (50.0%)||15 (42.9%)|
|Anorexia||0||1 (2.8%)||3 (9.4%)||2 (5.7%)|
|Constipation||1 (4.2%)||1 (2.8%)||3 (9.4%)||0|
|Diarrhea||1 (4.2%)||4 (11.1%)||6 (18.7%)||6 (17.1%)|
|Dry mouth||0||3 (8.3%)||3 (9.4%)||2 (5.7%)|
|Flatulence||0||3 (8.3%)||0||2 (5.7%)|
| Liver function tests
|Nausea||1 (4.2%)||0||4 (12.5%)||1 (2.9%)|
|Oral moniliasis||1 (4.2%)||4 (11.1%)||2 (6.3%)||0|
|Tooth pain||1 (4.2%)||0||0||0|
|Hemic and Lymphatic||0||8 (22.2%)||13 (40.6%)||10 (28.6%)|
|Anemia||0||2 (5.6%)||4 (12.5%)||3 (8.6%)|
|Leukopenia||0||6 (16.7%)||8 (25.0%)||3 (8.6%)|
|Lymphadenopathy||0||2 (5.6%)||4 (12.5%)||3 (8.6%)|
|Metabolic and Endocrine Disorders||1 (4.2%)||8 (22.2%)||12 (37.5%)||8 (22.9%)|
|Edema peripheral||1 (4.2%)||3 (8.3%)||1 (3.1%)||0|
|Hyperlipemia||0||2 (5.6%)||3 (9.4%)||1 (2.9%)|
|SGOT increased||0||1 (2.8%)||4 (12.5%)||2 (5.7%)|
|Nervous System||13 (54.2%)||19 (52.8%)||18 (56.3%)||12 (34.3%)|
|Dizziness||1 (4.2%)||7 (19.4%)||6 (18.7%)||0|
|Insomnia||0||0||3 (9.4%)||2 (5.7%)|
|Nervousness||0||1 (2.8%)||3 (9.4%)||0|
|Paresthesia||0||2 (5.6%)||5 (15.6%)||4 (11.4%)|
|Somnolence||9 (37.5%)||13 (36.1%)||12 (37.5%)||4 (11.4%)|
|Respiratory System||3 (12.5%)||9 (25.0%)||6 (18.7%)||9 (25.7%)|
|Pharyngitis||1 (4.2%)||3 (8.3%)||2 (6.3%)||2 (5.7%)|
|Rhinitis||1 (4.2%)||0||0||4 (11.4%)|
|Sinusitis||1 (4.2%)||3 (8.3%)||1 (3.1%)||2 (5.7%)|
|Skin and Appendages||10 (41.7%)||17 (47.2%)||18 (56.3%)||19 (54.3%)|
|Acne||0||4 (11.1%)||1 (3.1%)||0|
|Dermatitis fungal||1 (4.2%)||2 (5.6%)||3 (9.4%)||0|
|Nail disorder||1 (4.2%)||0||1 (3.1%)||0|
|Pruritus||2 (8.3%)||1 (2.8%)||2 (6.3%)||2 (5.7%)|
|Rash||5 (20.8%)||9 (25.0%)||8 (25.0%)||11 (31.4%)|
|Rash maculopapular||1 (4.2%)||6 (16.7%)||6 (18.7%)||2 (5.7%)|
|Sweating||0||0||4 (12.5%)||4 (11.4%)|
|Urogenital System||2 (8.3%)||6 (16.7%)||2 (6.3%)||4 (11.4%)|
|Albuminuria||0||3 (8.3%)||1 (3.1%)||2 (5.7%)|
|Hematuria||0||4 (11.1%)||0||1 (2.9%)|
|Impotence||2 (8.3%)||1 (2.8%)||0||0|
Other Adverse Events Observed in ENL Patients
THALOMID in doses up to 400 mg/day has been administered investigationally in the United States over a 19-year period in 1465 patients with ENL. The published literature describes the treatment of an additional 1678 patients. To provide a meaningful estimate of the proportion of the individuals having adverse events, similar types of events were grouped into a smaller number of standardized categories using a modified COSTART dictionary/terminology. These categories are used in the listing below. All reported events are included except those already listed in the previous table. Due to the fact that these data were collected from uncontrolled studies, the incidence rate cannot be determined. No causal relationship between THALOMID and these events can be conclusively determined at this time. These are reports of all adverse events noted by investigators in patients to whom they had administered thalidomide.
Body as a Whole: Abdomen enlarged, fever, photosensitivity, upper extremity pain.
Cardiovascular System: Bradycardia, hypertension, hypotension, peripheral vascular disorder, tachycardia, vasodilation.
Digestive System: Anorexia, appetite increase/weight gain, dry mouth, dyspepsia, enlarged liver, eructation, flatulence, increased liver function tests, intestinal obstruction, vomiting.
Hemic and Lymphatic: ESR decrease, eosinophilia, granulocytopenia, hypochromic anemia, leukemia, leukocytosis, leukopenia, MCV elevated, RBC abnormal, spleen palpable, thrombocytopenia.
Metabolic and Endocrine: ADH inappropriate, amyloidosis, bilirubinemia, BUN increased, creatinine increased, cyanosis, diabetes, edema, electrolyte abnormalities, hyperglycemia, hyperkalemia, hyperuricemia, hypocalcemia, hypoproteinemia, LDH increased, phosphorus decreased, SGPT increased.
Muscular Skeletal: Arthritis, bone tenderness, hypertonia, joint disorder, leg cramps, myalgia, myasthenia, periosteal disorder.
Nervous System: Abnormal thinking, agitation, amnesia, anxiety, causalgia, circumoral paresthesia, confusion, depression, euphoria, hyperesthesia, insomnia, nervousness, neuralgia, neuritis, neuropathy, paresthesia, peripheral neuritis, psychosis.
Respiratory System: Cough, emphysema, epistaxis, pulmonary embolus, rales, upper respiratory infection, voice alteration.
Skin and Appendages: Acne, alopecia, dry skin, eczematous rash, exfoliative dermatitis, ichthyosis, perifollicular thickening, skin necrosis, seborrhea, sweating, urticaria, vesiculobullous rash.
Special Senses: Amblyopia, deafness, dry eye, eye pain, tinnitus.
Urogenital: Decreased creatinine clearance, hematuria, orchitis, proteinuria, pyuria, urinary frequency.
Other Adverse Events Observed in HIV-seropositive Patients
In addition to controlled clinical trials, THALOMID has been used in uncontrolled studies in 145 patients. Less frequent adverse events that have been reported in these HIV-seropositive patients treated with THALOMID were grouped into a smaller number of standardized categories using modified COSTART dictionary/terminology and these categories are used in the listing below. Adverse events that have already been included in the tables and narrative above, or that are too general to be informative are not listed.
Body as a Whole: Ascites, AIDS, allergic reaction, cellulitis, chest pain, chills and fever, cyst, decreased CD4 count, facial edema, flu syndrome, hernia, thyroid hormone level altered, moniliasis, photosensitivity reaction, sarcoma, sepsis, viral infection.
Cardiovascular System: Angina pectoris, arrhythmia, atrial fibrillation, bradycardia, cerebral ischemia, cerebrovascular accident, congestive heart failure, deep thrombophlebitis, heart arrest, heart failure, hypertension, hypotension, murmur, myocardial infarct, palpitation, pericarditis, peripheral vascular disorder, postural hypotension, syncope, tachycardia, thrombophlebitis, thrombosis.
Digestive System: Cholangitis, cholestatic jaundice, colitis, dyspepsia, dysphagia, esophagitis, gastroenteritis, gastrointestinal disorder, gastrointestinal hemorrhage, gum disorder, hepatitis, pancreatitis, parotid gland enlargement, periodontitis, stomatitis, tongue discoloration, tooth disorder.
Hemic and Lymphatic: Aplastic anemia, macrocytic anemia, megaloblastic anemia, microcytic anemia.
Metabolic and Endocrine: Avitaminosis, bilirubinemia, dehydration, hypercholesteremia, hypoglycemia, increased alkaline phosphatase, increased lipase, increased serum creatinine, peripheral edema.
Muscular Skeletal: Myalgia, myasthenia.
Nervous System: Abnormal gait, ataxia, decreased libido, decreased reflexes, dementia, dysesthesia, dyskinesia, emotional lability, hostility, hypalgesia, hyperkinesia, incoordination, meningitis, neurologic disorder, tremor, vertigo.
Respiratory System: Apnea, bronchitis, lung disorder, lung edema, pneumonia (including Pneumocystis carinii pneumonia), rhinitis.
Skin and Appendages: Angioedema, benign skin neoplasm, eczema, herpes simplex, incomplete Stevens-Johnson syndrome, nail disorder, pruritus, psoriasis, skin discoloration, skin disorder.
Special Senses: Conjunctivitis, eye disorder, lacrimation disorder, retinitis, taste perversion.
The following adverse reactions have been identified during post approval use of THALOMID. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
Cardiovascular System: Cardiac arrhythmias including atrial fibrillation, bradycardia, tachycardia, sick sinus syndrome, EKG abnormalities, myocardial infarction.
Digestive System: Intestinal perforation, gastrointestinal perforations, intestinal obstruction.
Metabolic and Endocrine: Electrolyte imbalance including hypercalcemia or hypocalcemia, hyperkalemia and hypokalemia, hyponatremia, hypothyroidism, increased alkaline phosphatase, tumor lysis syndrome.
Nervous System: Changes in mental status or mood including depression and suicide attempts, disturbances in consciousness including lethargy, syncope, loss of consciousness or stupor, seizures including grand mal convulsions and status epilepticus, Parkinson’s disease, stroke.
Skin and Appendages: Erythema multiforme, toxic epidermal necrolysis.
Hemic and Lymphatic: Decreased white blood cell counts including neutropenia and febrile neutropenia, changes in prothrombin time, pancytopenia.
Respiratory System: Pleural effusion.
Reproductive System and Breast Disorders: amenorrhea, sexual dysfunction.
Immune System Disorders: Hypersensitivity, angioedema/urticaria.
Ear and Labyrinthine Disorders: Hearing impairment/deafness.
Renal and Urinary Disorders: Renal failure.
Other Adverse Events in the Published Literature or Reported from Other Sources
The following additional events have been identified either in the published literature or from spontaneous reports from other sources: acute renal failure, amenorrhea, aphthous stomatitis, bile duct obstruction, carpal tunnel, chronic myelogenous leukemia, diplopia, dysesthesia, dyspnea, enuresis, erythema nodosum, erythroleukemia, foot drop, galactorrhea, gynecomastia, hangover effect, hypomagnesemia, hypothyroidism, lymphedema, lymphopenia, metrorrhagia, migraine, myxedema, nodular sclerosing Hodgkin’s disease, nystagmus, oliguria, pancytopenia, petechiae, purpura, Raynaud’s syndrome, stomach ulcer, suicide attempt, interstitial lung disease and severe infections (e.g., fatal sepsis including septic shock).
Thalidomide is not a substrate for cytochrome P450 (CYP450) isoenzymes and does not inhibit or induce human CYP450 enzymes in vitro. Therefore, pharmacokinetic drug-drug interactions are not anticipated when thalidomide is coadministered with drugs that are substrates, inhibitors or inducers of cytochrome P450.
The use of opioids, antihistamines, antipsychotics, anti-anxiety agents, or other CNS depressants concomitantly with THALOMID may cause an additive sedative effect and should be avoided.
The use of drugs which slow cardiac conduction concomitantly with THALOMID may cause an additive bradycardic effect and should be used with caution. Cardiovascular medications which may cause bradycardia include calcium channel blockers, beta blockers, alpha/beta-adrenergic blockers, and digoxin. Non-cardiac drugs that may cause bradycardia include H2 blockers (e.g., famotidine, cimetidine), lithium, tricyclic antidepressants and neuromuscular blockers (succinylcholine).
In 16 healthy men, the pharmacokinetic profile of a single 0.5 mg digoxin dose was similar with and without the coadministration of thalidomide 200 mg/day at steady state levels. The single dose of digoxin had no effect on the pharmacokinetic profile of thalidomide. The safety of long-term concomitant use of THALOMID and digoxin has not been evaluated.
The use of drugs which cause peripheral neuropathy (e.g., bortezomib, amiodarone, cisplatin, docetaxel, paclitaxel, vincristine, disulfiram, phenytoin, metronidazole, alcohol) can cause an additive effect and should be used with caution.
Hormonal contraceptives increase the risk of thromboembolism. It is not known whether concomitant use of hormonal contraceptives further increases the risk of thromboembolism with THALOMID.
In 10 healthy women, the pharmacokinetic profiles of norethindrone and ethinyl estradiol following administration of a single dose containing 1.0 mg of norethindrone acetate and 75 µg of ethinyl estradiol were studied. The results were similar with and without coadministration of thalidomide 200 mg/day to steady-state levels.
In 13 healthy men, the pharmacokinetic profile and international normalized ratio (INR) of prothrombin time for warfarin, following a single oral dose of 25 mg, were similar with and without the coadministration of thalidomide 200 mg/day at steady-state levels. The single dose of warfarin had no effect on the pharmacokinetic profile of thalidomide.
Concomitant use of HIV-protease inhibitors, griseofulvin, modafinil, penicillins, rifampin, rifabutin, phenytoin, carbamazepine, or certain herbal supplements such as St. John’s Wort with hormonal contraceptive agents may reduce the effectiveness of the contraception up to one month after discontinuation of these concomitant therapies. Therefore, females requiring treatment with one or more of these drugs must use two OTHER effective or highly effective methods of contraception while taking thalidomide.
Erythropoietic agents, or other agents that may increase the risk of thromboembolism, such as estrogen containing therapies, should be used with caution in multiple myeloma patients receiving thalidomide with dexamethasone [see Warnings and Precautions (5.3)].
THALOMID can cause embryofetal harm when administered to a pregnant female and is contraindicated during pregnancy.
THALOMID is a human teratogen, inducing a high frequency of severe and life-threatening birth defects such as amelia (absence of limbs), phocomelia (short limbs), hypoplasticity of the bones, absence of bones, external ear abnormalities (including anotia, micropinna, small or absent external auditory canals), facial palsy, eye abnormalities (anophthalmos, microphthalmos), and congenital heart defects. Alimentary tract, urinary tract, and genital malformations have also been documented and mortality at or shortly after birth has been reported in about 40% of infants. Even a single dose taken by a pregnant woman can cause birth defects. If this drug is used during pregnancy, or if the patient becomes pregnant while taking this drug, the patient should be apprised of the potential hazard to a fetus.
If pregnancy does occur during treatment, immediately discontinue the drug. Under these conditions, refer the patient to an obstetrician/gynecologist experienced in reproductive toxicity for further evaluation and counseling. Report any suspected fetal exposure to THALOMID to the FDA via the MedWatch program at 1-800-FDA-1088 and also to Celgene Corporation at 1-888-423-5436.
A pre- and postnatal reproductive toxicity study was conducted in pregnant female rabbits. Compound-related increased abortion incidences and elevated fetotoxicity were observed at the lowest oral dose level of 30 mg/kg/day (approximately 1.5-fold the maximum human dose based upon BSA) and all higher dose levels. Neonatal mortality was elevated at oral dose levels to the lactating female rabbits ≥150 mg/kg/day (approximately 7.5-fold the maximum human dose based upon BSA). No delay in postnatal development, including learning and memory functions, were noted at the oral dose level to the lactating female rabbits of 150 mg/kg/day (average thalidomide concentrations in milk ranged from 22 to 36 µg/mL).
It is not known whether thalidomide is excreted in human milk. Thalidomide is excreted in the milk of lactating rabbits. Because many drugs are excreted in human milk and because of the potential for serious adverse reactions in nursing infants from THALOMID, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.
Safety and effectiveness in pediatric patients below the age of 12 years have not been established.
One hundred and seventy-six (52%) of 336 patients treated with THALOMID in combination with dexamethasone were ≥ 65 of age while 50 (15%) were ≥75. Patients ≥65 years of age on Study 2 had higher incidences of atrial fibrillation, constipation, fatigue, nausea, hypokalemia, deep venous thrombosis, hyperglycemia, pulmonary embolism, and asthenia compared to patients <65.
THALOMID can cause fetal harm when administered during pregnancy [see Use in Specific Populations (8.1)]. Females of reproductive potential must avoid pregnancy 4 weeks before therapy, while taking THALOMID, during dose interruptions and for at least 4 weeks after completing therapy.
Females of reproductive potential must commit either to abstain continuously from heterosexual sexual intercourse or to use two methods of reliable birth control simultaneously (one highly effective form of contraception – tubal ligation, IUD, hormonal (birth control pills, injections, hormonal patches, vaginal rings or implants) or partner’s vasectomy and one additional effective contraceptive method – male latex or synthetic condom, diaphragm or cervical cap. Contraception must begin 4 weeks prior to initiating treatment with THALOMID, during therapy, during dose interruptions and continuing for 4 weeks following discontinuation of THALOMID therapy. Reliable contraception is indicated even where there has been a history of infertility, unless due to hysterectomy. Females of reproductive potential should be referred to a qualified provider of contraceptive methods, if needed.
Females of reproductive potential must have 2 negative pregnancy tests before initiating THALOMID. The first test should be performed within 10-14 days, and the second test within 24 hours prior to prescribing THALOMID. Once treatment has started and during dose interruptions, pregnancy testing for females of reproductive potential should occur weekly during the first 4 weeks of use, then pregnancy testing should be repeated every 4 weeks in females with regular menstrual cycles. If menstrual cycles are irregular, the pregnancy testing should occur every 2 weeks. Pregnancy testing and counseling should be performed if a patient misses her period or if there is any abnormality in her menstrual bleeding. THALOMID treatment must be discontinued during this evaluation.
Thalidomide is present in the semen of males who take THALOMID. Therefore, males must always use a latex or synthetic condom during any sexual contact with females of reproductive potential while taking THALOMID, during dose interruptions and for up to 28 days after discontinuing THALOMID, even if they have undergone a successful vasectomy. Male patients taking THALOMID must not donate sperm.
No clinical studies were conducted with THALOMID in patients with mild, moderate or severe renal function. Renal impairment is not expected to influence drug exposure since <3.5% of the dose is excreted in the urine as unchanged drug.
In a study of 6 patients with end-stage renal disease, thalidomide (200 mg/day) was administered on a non-dialysis day and on a dialysis day and blood samples for pharmacokinetics were collected at least 10 hours following the dose. Comparison of concentration-time profiles on a non-dialysis day and during dialysis showed that the mean total clearance increased by a 2.5-fold during hemodialysis. Because the dialysis was performed 10 hours following administration of the dose, the drug-concentration time curves were not statistically significantly different for days patients were on and off of dialysis. In addition, there were no major differences in thalidomide PK between patients with end-stage renal disease and healthy volunteers. Thus, no dosage adjustment is needed for patients with renal impairment or patients on dialysis.
Physical and psychological dependence has not been reported in patients taking thalidomide; however, as with other tranquilizers/hypnotics, thalidomide has been reported to result in habituation to its soporific effects.
Overdosages of up to 14.4 g have been reported in the literature. No fatalities have been reported and all overdosed patients recovered without sequelae. There is no specific antidote for a thalidomide overdose. In the event of an overdose, the patient’s vital signs should be monitored and appropriate supportive care given to maintain blood pressure and respiratory status.
THALOMID, α-(N-phthalimido) glutarimide, is an immunomodulatory agent. The empirical formula for thalidomide is C13H10N2O4 and the gram molecular weight is 258.2. The CAS number of thalidomide is 50-35-1.
Chemical Structure of Thalidomide
Thalidomide is an off-white to white, odorless, crystalline powder that is soluble at 25°C in dimethyl sulfoxide and sparingly soluble in water and ethanol. The glutarimide moiety contains a single asymmetric center and, therefore, may exist in either of two optically active forms designated S-(-) or R-(+). THALOMID is an equal mixture of the S-(-) and R-(+) forms and, therefore, has a net optical rotation of zero.
THALOMID is available in 50 mg, 100 mg, 150 mg and 200 mg capsules for oral administration. Active ingredient: thalidomide. Inactive ingredients: pregelatinized starch and magnesium stearate. The 50 mg capsule shell contains gelatin, titanium dioxide, and black ink. The 100 mg capsule shell contains black iron oxide, yellow iron oxide, titanium dioxide, gelatin, and black ink. The 150 mg capsule shell contains FD&C blue #2, black iron oxide, yellow iron oxide, titanium dioxide, gelatin, and black and white ink. The 200 mg capsule shell contains FD&C blue #2, titanium dioxide, gelatin, and white ink.
The mechanism of action of THALOMID is not fully understood. THALOMID possesses immunomodulatory, antiinflammatory and antiangiogenic properties. Available data from in vitro studies and clinical trials suggest that the immunologic effects of this compound can vary substantially under different conditions, but may be related to suppression of excessive tumor necrosis factor-alpha (TNF-α) production and down-modulation of selected cell surface adhesion molecules involved in leukocyte migration. For example, administration of thalidomide has been reported to decrease circulating levels of TNF-α in patients with erythema nodosum leprosum (ENL); however, it has also been shown to increase plasma TNF-α levels in HIV-seropositive patients. Other anti-inflammatory and immunomodulatory properties of thalidomide may include suppression of macrophage involvement in prostaglandin synthesis, and modulation of interleukin-10 and interleukin-12 production by peripheral blood mononuclear cells. Thalidomide treatment of multiple myeloma patients is accompanied by an increase in the number of circulating natural killer cells, and an increase in plasma levels of interleukin-2 and interferon-gamma (T cell-derived cytokines associated with cytotoxic activity). Thalidomide was found to inhibit angiogenesis in a human umbilical artery explant model in vitro. The cellular processes of angiogenesis inhibited by thalidomide may include the proliferation of endothelial cells.
Absorption of THALOMID is slow after oral administration. The maximum plasma concentrations are reached approximately 2-5 hours after administration. The absolute bioavailability of thalidomide from thalidomide capsules has not yet been characterized in human subjects due to its poor aqueous solubility. Based on the 14C-radiolabel thalidomide study in human, greater than 90% of the total radioactivity is recovered in urine suggesting good oral absorption. While the extent of absorption (as measured by area under the curve [AUC]) is proportional to dose in healthy subjects, the observed peak concentration (Cmax) increased in a less than proportional manner (see Table 5 below). This lack of Cmax dose proportionality, coupled with the observed increase in Tmax values, suggests that the poor solubility of thalidomide in aqueous media may be hindering the rate of absorption.
|Healthy Subjects (n=14)|
|50 mg||4.9 (16%)||0.62 (52%)||2.9 (66%)||5.52 (37%)|
|200 mg||18.9 (17%)||1.76 (30%)||3.5 (57%)||5.53 (25%)|
|400 mg||36.4 (26%)||2.82 (28%)||4.3 (37%)||7.29 (36%)|
|Patients with Hansen’s Disease (n=6)|
|400 mg||46.4 (44.1%)||3.44 (52.6%)||5.7 (27%)||6.86 (17%)|
Coadministration of THALOMID® (thalidomide) with a high-fat meal causes minor (<10%) changes in the observed AUC and Cmax values; however, it causes an increase in Tmax to approximately 6 hours.
In human plasma, the geometric mean plasma protein binding was 55% and 66%, respectively, for (+)-(R)- and (-)-(S)-thalidomide. In a pharmacokinetic study of thalidomide in HIV-seropositive adult male subjects receiving thalidomide 100 mg/day, thalidomide was detectable in the semen.
In a 14C-radiolabel ADME study in humans, unchanged drug is the predominant circulating component. Thalidomide is not a substrate of the cytochrome P450 system. At therapeutic concentrations, thalidomide is not an inhibitor or inducer of human cytochrome P450 enzymes in vitro. Pharmacokinetic drug-drug interactions with substrates, inhibitors or inducers of CYP450 are not anticipated.
The mean elimination half-life of thalidomide in plasma following single oral doses between 50 mg and 400 mg was 5.5 to 7.3 hours. Following a single 400 mg oral dose of radiolabeled thalidomide, the total mean recovery was 93.6% of the administered dose by Day 8. The majority of the radioactive dose was excreted within 48 hours following dose administration. In humans, 14C-thalidomide is primarily excreted in urine (91.9% of the radioactive dose) mainly as hydrolytic metabolites while fecal excretion is minor (<2% of the dose). Unchanged thalidomide is not eliminated by the kidney to a notable degree (<3.5% of the dose).
Effects of Weight
There is a linear relationship between body weight and estimated thalidomide clearance. In MM patients with body weight from 47-133 kg, thalidomide clearance ranged from approximately 6-12 L/h, representing an increase in thalidomide clearance of 0.605 L/h per 10 kg body weight increase.
Effects of Age, Gender and Race
Analysis of the data from pharmacokinetic studies in healthy volunteers and patients with Hansen’s disease ranging in age from 20 to 69 years does not reveal any age-related changes.
While a comparative trial of the effects of gender on thalidomide pharmacokinetics has not been conducted, examination of the data for thalidomide does not reveal any significant gender differences in pharmacokinetic parameter values.
Pharmacokinetic differences due to race have not been studied.
Pharmacokinetic Data in Special Populations
HIV-seropositive Subjects: There is no apparent significant difference in measured pharmacokinetic parameter values between healthy human subjects and HIV-seropositive subjects following single-dose administration of THALOMID Capsules.
Patients with Hansen’s Disease: Analysis of data from a small study in Hansen’s patients suggests that these patients, relative to healthy subjects, may have an increased bioavailability of THALOMID. The increase is reflected both in an increased area under the curve and in increased peak plasma levels. The clinical significance of this increase is unknown.
Pediatric: No pharmacokinetic data are available in subjects below the age of 18 years.
Two-year carcinogenicity studies were conducted in male and female rats and mice. No compound-related tumorigenic effects were observed at the highest dose levels of 3,000 mg/kg/day to male and female mice (38-fold greater than the highest recommended daily human dose of 400 mg based upon body surface area [BSA]), 3,000 mg/kg/day to female rats (75-fold the maximum human dose based upon BSA), and 300 mg/kg/day to male rats (7.5-fold the maximum human dose based upon BSA).
Thalidomide was neither mutagenic nor genotoxic in the following assays: the Ames bacterial (S. typhimurium and E. coli) reverse mutation assay, a Chinese hamster ovary cell (AS52/XPRT) forward mutation assay, and an in vivo mouse micronucleus test.
Fertility studies were conducted in male and female rabbits; no compound-related effects in mating and fertility indices were observed at any oral thalidomide dose level including the highest of 100 mg/kg/day to female rabbits and 500 mg/kg/day to male rabbits (approximately 5- and 25-fold the maximum human dose, respectively, based upon BSA). Testicular pathological and histopathological effects (classified as slight) were seen in male rabbits at dose levels ≥30 mg/kg/day (approximately 1.5-fold the maximum human dose based upon BSA).
The efficacy and safety of THALOMID in patients with multiple myeloma were evaluated in two randomized, multi-center studies (Study 1 and Study 2). Study 1 was an open-label study which randomized 207 symptomatic patients with newly diagnosed MM to THALOMID plus dexamethasone (N = 103) versus dexamethasone alone (N=104). The THALOMID dose was 200 mg daily and the dexamethasone dose was 40 mg orally once daily on days 1-4, 9-12, and 17-20 every 28-days. Each group was treated for four 28-day cycles.
Study 2 randomized 470 newly diagnosed patients with MM to THALOMID plus dexamethasone (N=235) versus placebo plus dexamethasone (N=235). In the THALOMID/dexamethasone arm, a starting dose of thalidomide 50 mg was escalated to 200 mg/day (cycle 2) once daily for 28 days. Patients in both treatment groups took 40 mg of dexamethasone once daily given on days 1-4, 9-12, and 17-20 (every 28 days). Beginning with Cycle 5, the dose of dexamethasone was reduced to 40 mg once daily on Days 1 to 4 of each cycle. Treatment continued as tolerated until disease progression.
|Study 1||Study 2|
1Missing information in Study 1 for 1 patient in the Dex alone group
2Missing information in Study 1 for 1 patient per arm
3Black/Hispanic [1 (0.4%)], Hispanic [2 (0.9%)], Hispanic/White [1 (0.4%)], Other [0 (0.0%)]
4Hispanic [1 (0.4%)], Asian/Pacific Islander [2 (0.9%)], Other [1 (0.4%)]
|Range||37 – 83||38 – 83||39 – 86||31 – 84|
|Gender1, N (%)|
|Male||53 (51)||61 (59)||118 (50)||120 (51)|
|Female||50 (49)||42 (40)||117 (50)||115 (49)|
|Race2, N (%)|
|Caucasian||90 (87)||90 (87)||224 (95)||221 (94)|
|Black||11 (11)||11 (11)||7 (3)||10 (4)|
|Other||1 (1)||2 (2)||4 (2)3||4 (2)4|
1 Missing information for 1 patient in Thal + Dex arm
2 Missing information for 19 patients in Thal + Dex arm and 20 patients in Dex alone arm
3 Missing information for 17 patients in Thal + Dex arm and 30 patients in Dex alone arm
4 Missing information for 16 patients in Thal + Dex arm and 11 patients in Dex alone arm
|Stage (Durie-Salmon), N (%)1|
|I||14 (13.6%)||17 (16.3%)|
|II||47 (45.6%)||44 (42.3%)|
|III||41 (39.8%)||43 (41.3%)|
|Immunoglobulin Type, N (%)2|
|IgA||21 (20.4%)||22 (21.2%)|
|IgG||63 (61.2%)||60 (57.7%)|
|IgM||0 (0.0%)||1 (1.0%)|
|Biclonal||0 (0.0%)||1 (1.0%)|
|None||28 (27.1%)||14 (13.5%)|
|1-3 lesions||24 (23.3%)||19 (18.3%)|
|>3 lesions||34 (33.0%)||41 (39.4%)|
|Serum Light Chain4|
|Kappa||59 (57.3%)||53 (51.0%)|
|Lambda||28 (27.2%)||40 (38.5%)|
KEY: ECOG=Eastern Cooperative Oncology Group
|Baseline MM Stage (Durie-Salmon), n (%)|
|I||2 (1)||2 (1)|
|II||76 (32)||88 (37)|
|III||157 (69)||145 (62)|
|ECOG Performance Status, n (%)|
|0||40 (17)||54 (23)|
|1||124 (53)||112 (48)|
|2||70 (30)||68 (29)|
|3||0 (0)||1 (<1)|
|Missing||1 (<1)||0 (0)|
|Lytic Bone Lesions, n (%)|
|Present||185 (79)||188 (80)|
|Absent||49 (21)||46 (20)|
|Missing||1 (<1)||1 (<1)|
|Bone Marrow Apirate/Biopsy Cellularity, n (%)|
|Normal||102 (43)||108 (46)|
|Hyperplasia||77 (33)||76 (32)|
|Hypoplasia||53 (23)||50 (21)|
|Missing||3 (1)||1 (<1)|
|Baseline β-2 Microglobulin, n (%)|
|≤ 2.5 mg/L||33 (14)||35 (15)|
|> 2.5 mg/L||200 (85)||199 (85)|
|Missing||2 (1)||1 (<1)|
In Study 1, response rate was the primary endpoint. Response rates based on serum or urine paraprotein measurements were significantly higher in the combination arm (52% vs. 36%). The primary efficacy endpoint in Study 2 was time to progression (TTP), defined as the time from randomization to the first documentation of disease progression, based on the myeloma response criteria. A preplanned interim analysis for Study 2 demonstrated that the combination of THALOMID plus dexamethasone was superior to placebo plus dexamethasone with respect to TTP (Table 9).
a The 95% confidence intervals about the median overall TTP, or median overall survival. CI: confidence interval; NR: not reached.
b Based on a proportional hazards model comparing the hazard functions associated with treatment groups (thalidomide/dexamethasone:placebo/dexamethasone).
c P-value based on the interim analysis was compared with the nominal significance level of 0.0027. Based on a one-sided unstratified log rank test of survival curve differences between treatment groups.
d Disease response assessments were determined according to the Bladé criteria. Response is the highest assessment of response during the treatment phase of the study.
|Time to Progression|
|Progressed – n (%)||72 (31)||126 (54)|
|Median (Weeks) (95% CIa)||97.7 (61.86, NR)||28.3 (27.71, 36.43)|
|Hazard Ratio (95% CI)b||0.43 (0.32, 0.58)|
|Death – n (%)||57 (24)||68 (29)|
|Median (Weeks) (95% CIa)||NR (112.14, NR)||128.6 (113.43, NR)|
|Hazard Ratio (95% CI)b||0.82 (0.57, 1.16)|
|Myeloma Response Rated – n (%)|
|Complete Response (CR)||18 (8)||6 (3)|
|Partial Response (PR)||130 (55)||102 (43)|
| Overall Response (CR + PR)
95% CI (%)
The Kaplan-Meier plot of the time to progression by treatment group is presented in Figure 1.
Figure 1: Kaplan-Meier Plot of Time to Disease Progression
KEY: Placebo/Dex=placebo/dexamethasone; Thal/Dex=THALOMID/dexamethasone
The primary data demonstrating the efficacy of thalidomide in the treatment of the cutaneous manifestations of moderate to severe ENL are derived from the published medical literature and from a retrospective study of 102 patients treated by the U.S. Public Health Service.
Two double-blind, randomized, controlled trials reported the dermatologic response to a 7-day course of 100 mg thalidomide (four times daily) or control. Dosage was lower for patients under 50 kg in weight.
|Reference||No. of Patients||No. Treatment Courses*||Percent Responding**|
* In patients with cutaneous lesions
**Iyer: Complete response or lesions absent
**Sheskin: Complete improvement + “striking” improvement (i.e., >50% improvement)
| Iyer et al.
Bull World Health
| Sheskin et al.
Int J Lep 1969;37:135
Waters reported the results of two studies, both double-blind, randomized, placebo-controlled, crossover trials in a total of 10 hospitalized, steroid-dependent patients with chronic ENL treated with 100 mg thalidomide or placebo (three times daily). All patients also received dapsone. The primary endpoint was reduction in weekly steroid dosage.
|Reference||Duration of Treatment||No. of Patients||Number Responding|
|Lep Rev 1971;42:26||6 weeks
Data on the efficacy of thalidomide in prevention of ENL relapse were derived from a retrospective evaluation of 102 patients treated under the auspices of the U.S. Public Health Service. A subset of patients with ENL controlled on thalidomide demonstrated repeated relapse upon drug withdrawal and remission with reinstitution of therapy.
Twenty U.S. patients between the ages of 11 and 17 years were treated with thalidomide, generally at 100 mg daily. Response rates and safety profiles were similar to that observed in the adult population.
Thirty-two other published studies containing over 1600 patients consistently report generally successful treatment of the cutaneous manifestations of moderate to severe ENL with thalidomide.
(THIS PRODUCT IS ONLY SUPPLIED TO PHARMACIES CERTIFIED IN THE THALOMID REMS™ PROGRAM - See BOXED WARNING)
50 mg capsules [white opaque], imprinted “Celgene/50 mg” with a “Do Not Get Pregnant” logo.
Individual blister packs of 1 capsule (NDC 59572-205-17).
Individual blister packs of 28 capsules (NDC 59572-205-14).
Boxes of 280 containing 10 prescription packs of 28 capsules each (NDC 59572-205-94).
100 mg capsules [tan], imprinted “Celgene/100 mg” with a “Do Not Get Pregnant” logo.
Individual blister packs of 28 capsules (NDC 59572-210-15).
Boxes of 140 containing 5 prescription packs of 28 capsules each (NDC 59572-210-95).
150 mg capsules [tan and blue], imprinted “Celgene/150 mg” with a “Do Not Get Pregnant” logo.
Individual blister packs of 28 capsules (NDC 59572-215-13).
Boxes of 112 containing 4 prescription packs of 28 capsules (NDC 59572-215-93).
200 mg capsules [blue], imprinted “Celgene/200 mg” with a “Do Not Get Pregnant” logo.
Individual blister packs of 28 capsules (NDC 59572-220-16).
Boxes of 84 containing 3 prescription packs of 28 capsules each (NDC 59572-220-96).
This drug must not be repackaged.
Store at 20°C- 25°C (68°F -77°F); excursions permitted to 15-30° C (59-86° F). [See USP Controlled Room Temperature]. Protect from light.
Care should be exercised in handling of THALOMID. THALOMID capsules should not be opened or crushed. If powder from THALOMID contacts the skin, wash the skin immediately and thoroughly with soap and water. If THALOMID contacts the mucous membranes, flush thoroughly with water.
Procedures for proper handling and disposal of anticancer drugs should be considered. Several guidelines on the subject have been published1.
Rx only and only able to be prescribed and dispensed under the terms of the THALOMID REMS™ Restricted Distribution Program.
Manufactured for Celgene Corporation
86 Morris Avenue
Summit, NJ 07901
See FDA-approved Patient labeling (Medication Guide)
Advise patients that THALOMID is contraindicated in pregnancy and can cause serious birth defects or death to a developing baby. [see Contraindications (4.1), Warnings and Precautions (5.1) and Use in Specific Populations (8.1)].
THALOMID REMS™ Program
Because of the risk of embryo-fetal toxicity, THALOMID is only available through a restricted program called the THALOMID REMS™ program (formerly known as the “S.T.E.P.S.®” program) [see Warnings and Precautions (5.2)].
Venous and Arterial Thromboembolism
Inform patients of the potential risk of developing venous thromboembolism (such as DVT and PE), ischemic heart disease (including myocardial infarction), and stroke, and discuss the need for appropriate prophylactic treatment [see Boxed Warnings and Warning and Precautions (5.3)].
Drowsiness and Somnolence
Inform patients of the risk of drowsiness and somnolence with the drug and to avoid situations where drowsiness or somnolence may be a problem and not to take other medications that may cause drowsiness or somnolence without adequate medical advice [see Warnings and Precautions (5.4)].
Inform patients of the risk of peripheral neuropathy and report the signs and symptoms associated with this event to their health care provider for further evaluation [see Warnings and Precautions (5.5)].
Dizziness and Orthostatic Hypotension
Inform patients of the risk of dizziness and orthostatic hypotension with the drug. Inform patients to sit upright for a few minutes prior to standing [see Warnings and Precautions (5.6)].
Inform patients on the risk of developing neutropenia and the need to monitor their white blood cell count [see Warnings and Precautions (5.7)].
Increased HIV Viral Load
Inform HIV seropositive patients of the risk of increased viral load and the need to monitor viral load [see Warnings and Precautions (5.8)].
Inform patients of the risk of bradycardia and report signs and symptoms associated with this event to their healthcare provider for evaluation [see Warnings and Precautions (5.9)].
Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis
Inform patients of the potential risk for Stevens Johnson syndrome and toxic epidermal necrolysis and report any signs and symptoms associated with these events to their healthcare provider for evaluation [see Warnings and Precautions (5.10)].
Inform patients of the risk of seizures and report any seizure while taking THALOMID [see Warnings and Precautions (5.11)].
Tumor Lysis Syndrome
Inform patients of the potential risk of tumor lysis syndrome and report any signs and symptoms associated with this event to their healthcare provider for evaluation [see Warnings and Precautions (5.12)].
Inform patients that some contraceptive methods may pose a higher risk of adverse effects or may be medically contraindicated in some patients treated with THALOMID [see Warnings and Precautions (5.13), Drug Interactions (7.4, 7.7)].
Inform patients of the potential for a hypersensitivity reaction to THALOMID if they have had such a reaction in the past to Revlimid [see Warnings and Precautions (5.14)].
THALOMID® and S.T.E.P.S.® are registered trademarks of Celgene Corporation.
©1998-2014 Celgene Corporation. All Rights Reserved.
THALPLYPI.019/MG.019 06/14 CG
Females must not become pregnant:
Talk to your healthcare provider right away if you have unprotected sex or if you think your birth control has failed. If your healthcare provider is not available, you can call 1-888-668-2528 for emergency contraception information.
If you become pregnant while taking THALOMID, stop taking it right away and call your healthcare provider. If your healthcare provider is not available, you can call 1-800-FDA-1088 for medical information. Healthcare providers and patients should report all pregnancies to:
Men, if your female partner becomes pregnant, you should call your healthcare provider right away.
Before taking THALOMID, tell your healthcare provider about all the medicines you take. Certain other medicines can also increase your risk for blood clots.
Call your healthcare provider or get medical help right away if you get any of the following during treatment with THALOMID:
THALOMID is a prescription medicine used:
It is not known if THALOMID is safe and effective in children under 12 years of age.
Before you take THALOMID, tell your healthcare provider if you:
Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. THALOMID and other medicines may affect each other causing serious side effects. Certain medicines can affect the way that birth control pills, injections, patches, or implants work. You could become pregnant. See “What is the most important information I should know about THALOMID?”
Know the medicines you take. Keep a list of them to show your healthcare provider and pharmacist.
Take THALOMID exactly as prescribed and follow all the instructions of the THALOMID REMS™ program (formerly known as the S.T.E.P.S.® program).
Females who can become pregnant:
Males who take THALOMID, even those who have had a vasectomy, must agree to use a latex or synthetic condom during sexual contact with a pregnant female or a female who can become pregnant.
THALOMID may cause serious side effects, including:
The most common side effects of THALOMID for treatment of multiple myeloma include:
The most common side effects THALOMID for treatment of leprosy include:
These are not all the possible side effects of THALOMID.
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Keep THALOMID and all medicines out of the reach of children.
General information about THALOMID
Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not take THALOMID for conditions for which it was not prescribed. Do not give THALOMID to other people, even if they have the same symptoms you have. It may harm them and may cause birth defects.
This Medication Guide provides a summary of the most important information about THALOMID. If you would like more information, talk with your healthcare provider. You can ask your healthcare provider or pharmacist for information about THALOMID that is written for health professionals.
For more information, call 1-888-423-5436 or go to www.celgeneriskmanagement.com.
Active ingredient: thalidomide
Inactive ingredients: pregelatinized starch and magnesium stearate.
The 50 mg capsule shell contains gelatin, titanium dioxide and black ink.
The 100 mg capsule shell contains black iron oxide, yellow iron oxide, titanium dioxide, gelatin, and black ink.
The 150 mg capsule shell contains FD&C blue #2, black iron oxide, yellow iron oxide, titanium dioxide, gelatin, and black and white ink.
The 200 mg capsule shell contains FD&C blue #2, titanium dioxide, gelatin, and white ink.
This Medication Guide has been approved by the U.S. Food and Drug Administration.
Summit, NJ 07901
THALOMID® and S.T.E.P.S.® are registered trademarks of Celgene Corporation.
©1998-2014 Celgene Corporation. All Rights Reserved.
THALPLYMG.019 06/14 CG
|Labeler - Celgene Corporation (174201137)|